Term
| how far does the spinal cord extend? |
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Definition
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Term
| in what back region are the spinal nerves the longest? |
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Definition
| lumbar and sacral/coccygeal |
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Term
| how far does the dural sac extend? |
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Definition
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Term
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Definition
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Term
| internal filum terminale (position) |
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Definition
| extends from medullary cone to the tip of the dural sac |
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Term
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Definition
| extends from tip of dural sac to the sacrum/coccyx |
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Term
| what makes up the spinal meninges? |
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Definition
| dura, arachnoid, and pia mater |
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Term
| dura mater blends with what of the spinal nerve? |
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Definition
| epineurium (outer covering) |
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Term
| recurrent meningeal nerves |
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Definition
| nerves that arise directly from the spinal nerve and convey sensory info from the dura mater |
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Term
| what is in the subarachnoid space? (4) |
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Definition
| CSF, spinal cord, nerve roots, DRG |
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Term
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Definition
| lateral extensions of pia mater in between dorsal and ventral roots, which help anchor the cord laterally |
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Term
epidural space (position)?
contains? |
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Definition
between vertebral canal and dura mater
adipose and the internal (epidural) venous plexus |
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Term
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Definition
drains blood from vertebral body and into the internal plexus
no valves!
site for metastatic bone cancer |
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Term
| caudal epidural block (what and where)? |
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Definition
anesthesia injected in the epidural space of the sacrum
blocks lumbar and sacral nerve roots |
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Term
| name the arteries of the spinal cord (6) |
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Definition
| vertebral arteries, ascending cervical arteries, deep cervical arteries, intercostal arteries, lumbar arteries, lateral sacral arteries |
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Term
| vertebral arteries (pass through and attach to)? |
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Definition
| pass through cervical intervertebral foramina and attach to subclavian arteries |
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Term
feeder (helper) vessels enter through?
name of other spinal cord artery branches and what they arise from? |
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Definition
IV foramen
longitudinal vessels (anterior spinal artery and two posterior spinal arteries; arise from vertebral arteries) |
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Term
| list the artery pathway of the spinal cord starting with the aorta (3) |
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Definition
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Term
artery of Adamkiewicz?
AKA? |
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Definition
largest segmental medullary artery
AKA great anterior segmental artery |
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Term
| supraspinous ligament (position) |
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Definition
| connects spinous processes from sacrum to C7 (ligamentum nuchae starts here) |
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Term
| top point of the ligamentum nuchae? |
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Definition
| external occipital protuberance |
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